Rock Lab

Earth discovery

Rock Lab

Today's mission

Rock Lab: Look and choose

Rock Lab: Choose where the smooth gray rock belongs.

Notice Try Show
A rock tray sorted by texture with rough, smooth, shiny, and dull examples

What do you think?

Grown-up guide

Learning goal

Sort rocks by observable properties and compare multiple valid grouping rules.

Listen for

Every collection has only one correct way to sort it.

Teaching move

After sorting by texture, invite a new sort by color or size and compare the rules.

Standards under review

2-PS1-1

Educator review is required before verified-release status.

Original World tools